Scilab Function
Last update : 12/1/2004

nearfloat - get previous or next floating-point number

### Calling Sequence

  `xnear = nearfloat(dir, x)`

### Parameters

- `dir`: string ("succ" or "pred")
- `x`: real scalar, vector or matrix
- `xnear`: real scalar, vector or matrix

### Description

This function computes, in the element wise meaning, the corresponding neighbours of the elements of `x` (in the underlying floating point set, see number_properties), the successors if `dir = "succ"` and the predecessors if `dir = "pred"`

### Examples

    format("e",22)
    nearfloat("succ",1) - 1
    1 - nearfloat("pred",1)
    format("v") //reset default format

### See Also

`number_properties`, `frexp`,

### Author

B.P.